佳作 佳作
蝴蝶的逆光藝術
The Art of Backlighting Butterflies
作者 | 孟繁鈴
#昆蟲與蜘蛛
科學圖說 Introduction
光線是一種美妙的物理現象,生物視覺因光得以呈現。光線順向行進到達物體表面,可以看到明亮清晰的影像,但逆光若控制得宜,所得到的影像會是美好的視覺享受。這組影像依次呈現了:圖1纖粉蝶的強逆光;圖2臺灣黃蝶的中逆光;圖3樺斑蝶的弱逆光。逆光不一定會喪失很多主體細節,調整逆向光線、可透光的生物主體及環境背景明亮度,一樣可以得到主體清晰的美麗影像。
Light is an amazing physical phenomenon that enables organisms to see. Light travels and, when it reaches an object, it provides a clear image of it. If the backlighting is manipulated well, nice images are obtained. The following butterfly images are presenting under three treatments: Image 1: The psyche (Leptosia nina) with strong backlighting; Image 2: The three-spot grass yellow (Eurema blanda) with medium backlighting; Image 3: The plain tiger (Danaus chrysippus) with weak backlighting. Backlighting does not necessarily lead to a loss of detail. Rather, by adjusting backlighting, a light-transmissive subject, and the brightness of the background, will get a clear and beautiful result.

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